Hoist



A Hom. J y APPLICATION F|LED MAY7.1918.

Patented June 24, 1919.

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C. SiBowMAN,

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APPLICATION FILED MAY 7. 1918. r

' atntd June 24, 1919.

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V @nvm/woz. (1S. BUWMANV- Witwen:

E www C.*S. BOWlVIAN.

HOIST. APPLICATION FILED MAY 7. 191s'.

Pat-ent June 24, 1919.

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C, Si B owMAN",

GYBUS S. BOWMAN, F OMAHA, NEBRASKA.

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Application led May 7. 1918.

Be it known that l', (Ynrs S. Bowman', a citizen of the United States. and a resident. of Omaha. in the county7 of Douglas and Siate. of Nebraska. have invented certain new and useful Improvements in Hoists, of which the followimg` is a specification.

My invention relates to engine or powerdriven hoisting apparatus. lt is the objeet of my invention to -.]`n'ovide aI simple. and eiiieient apparatus of this type. havinga cable-drum and a. rope-sheave mounted on the same shaft,`and actuating` n'leans for operating' the drum and sh ,ave either jointly or independently. said actuating means be ing adapt d to drive the drinn and sheave in either normal or reverse direction, and todri ve the drum in normal direction at two different speeds. Further objects of my invention will appear hereinafter.

In the aceon'lpanyinL` drawings Figure 1 is a front view of a hoistingnieehanism embodyingmy invention, Fig. Qlis a horizon tal section thereof on the plane of the line Q-Q of Fie". l, Fig. 3 is a vertieal section on the line 3-3 of Fig. 1, Fig. 4. is a` vertical section on the line 4 4 of Fig. 2. and Figs. 5 and. 6 are detail front views of the drinn.- ellltch control devices, partly in seetion on the respective lines 5-5 and GHG of Fig'. 3.

In the construction illustrated, I provide a base-fra1ne 7 on which is mounted near one end ay suitable engine A having a shaft S `carrying a drive-gear 9. Said rear 9 meshes with and drives a gear which is secured on the hoist drive-shaftll. Said shaft l1 extends horizontally through the front and rear side-frames 1Q and i3. being suitabhY y jonrnaled therein, and said side-frames being' mounted on opposite sides of the base`- frame 7 in the vertical and lfiarallel positions shown. The d1'nn'i.sl1a.ft 14 is disposed parallel. with the drive-shaft 11. and is similarly jonrnaled in the sidefran'ies 12 and 1?). 'lhe reverse-shaft is journaled `in the sideframesbelow 4the drive-shaft ll and extend- :ingl parallel therewith..l `(ln the shaft 1]. intermediate the side-frames. there is disposed arpinion .'16 which is keyed to the shaft, and pinionsy 17 and 18 whieh are revolubly mounted thereon. The pinions '17 and 1S are formed iljiteg'rally with annular elntehmembers 19 and 20, respectively. letween said.elutehfmembers thereis mounted on the shaita double frietionfelnt-eh device having a sleeve 21 which may be moved longitudi- Specification of Letters Patent.

surfaces latented J une 2li. 'l 3M 4l.

Serial No. 233,173.

nail)r ol thel shaft by means of a suitable lever, to thereby operatively eonneet one or the other of the annular eluteh-members to the shaft. ol at an inte-rimaliate position to leave both of the clutelnmembers free to re- 1vol ve indta'lendently of the shaft. nv suitable clutch-meehanism of the type indicated may be employed, andthe detailed struetllre thereof need not be described herein.

The pinion 1G is in constant mesh with a.

. gear 22 which is mounted revolublv and slid ably on the shaft 14. the position of the gear longitudinalI vY of the shaft being controlled as hereinafter explained. The pinion 15% is in constant mesh with a gear Q3 which isoi larger diameter than the rear 22, and lis mounted on the shaft 14 so as to he slidable axially thereof. but is eonneetml with the shaft by a spline shaft may be driven by said gear.' The pinion '17 meshes witl a ,gear 25 seeured on the reverse-shaft 15. and a seeond pinion 2o on said shaft 15 meshes with the rear 2?. lt will be seen that. by the deseribed gearing'. the gear :l-and shaft 14 will he driven Ain one direetion when the clutch 21 is operatedto connect the shaft 11 and eluteh member Q0. and that said e'ear Eiland drumshaft will be driven in the opposite or re verse direction when the clutch is operatedV to connect the drive-shaft ll and clutchmember ]S). lt will also he seen that, as the pinion 1G is larger than the pinion 11S, and the 2g'ear 22 is` smaller than the gear 23, said fear 9.2 will be driven at a greater speed than the rear 23. but always in a normal or forward direction.

.l`he cable-drum 27 is mounted 'revolubly on `the shaft lll between the `fears 2Q and 23. there beine, collars .28 secured tothe shaft adjacent to the ends of the drum. and loose.

thrust-washers said collars 2H and the drnmsends, as shown in Fins. Q and l, so that while, the drum ma)Y revolve freely upon the shaft. relative axial n'lovement of the drunl and shaft is prevented. At the ends of the drum, and formed integrally therewith. there are an;- nnlar flanges 31 and l() of which the inner are tronco-conical and adapted for engagement bv wooden eluteh-eones and 3;). carried, respectively, by theJ gears 122-3 Q2.

shaftbetveen the collars 28 and the gears E22 and Q. normally press said gearslaw.

or loose e v 24, so that the 2S) beingl interposed between Bri Y ant-Ih Springs -land 35, disposed around the from the drun, so that `the eliitcheonesl i. i i

2 1 ,aerea and 33 are held out of engagement with the den -flanges and 31. For causing engagement of said clutch-cones and drum flanges, the gears 22 and 23 are moved to- Ward the drum by means of controlling devices disposed on the shaft 14 between the gears and the inner ends of the hearings for said Shaft in the side-frames l2 and 13.

On the shaft adj oiningg said bearings, there are secured peripherally threadedL collars 36, on which are screwed cupeshaped take-up collars 37, the latter being secured in, adjustedpositions by means of set-screws 38. Loose thrust washers are disposed on the shaft adjoining` said talreaip collars, and similar thrust-washers are disposed on the shaft adjoining the outer ends of the hubs of the gears 22 and iadjoining the thrust-washers 40, collars 41441 are dis- ;posed slidahly upon the shaft, the inner ends 'of said collars being` plane-surfaced and the outer ends thereot` having ratchet-like teethl formed thereon. From said toothed collars 41--41 arms 42 extend dowmvardly, as

vshow n in Figs. 3, 5 and 6, the ends ott said arms being forked and straddling pins 43 carried by the side-trames 12 and 13, to thereby prevent rotation of the collars, while H permitting` axial movements thereof. Collars 44-44 are disposed on the shaft between the collars l1-41 and the outer thrust-Washers 39, the outer ends of said collars i4-4e being plane-surfaced, and the inner ends thereoilbeingf` toothed to conform with the toothed ends of the collars 41m-l1. Arms 45-45.,`formed integrally with the collars 441-414', normally extend diagonally upward therefrom, said arms being at opposite sides of the vertical plane of the shaft axis. The inclination of the teeth on the .contacting ends of the pairs of collars 41-44 and @l1/ 44' 'are such that by pivotal movementof the collars Llei-44' about the' shaft axis, resn'ltingt'rorn downward movement ofthe arms 45-45, the collars 411-41 are moved axiallyto press the gears 212-23 toward the drum.

A, tubular rocking-shalt 1&6 is mounted pivot-ally in the side-frames 1:2-13 beneath land parallel with the drum-shaft le; a handie'orcontrol-lever 47 is secured to the rear end of said sha-it 46, and normally extends vertically therefrom. On the intermediate portion of said rocking-shaft 4G. collars 485-48 are loosely mounted, 'said collars having integral arms 49-49 which extend, respectively, in the same vertical planes as, and substantially parallel to, the arms l5-45C 'lhe pairsI of arms elli-4,9 and 45h-JAY are connected to each other by verti 'ally extending bars 50-50 having forked end} )ortions which straddle the ends of the arms and are pivotally connected thereto. The arms are held normally in the raised positions shown, by means of springs lll-431 attached to short arms (l2 GQ' on the eollars 5l-48', and connected with the frame as shown. Adjacent to the inner ends of the collars l5-SQ collars Fil-5l are secured to the shaft 1G, said collars being' lrcrt'ed at one side and secured lo the shaft hy clamping thereon. Lugs 52-53 and .5T-53 are provided on the adjoining ends of the pairs of collars l8-51 and 8L-51', said lugs overlapping axially, as shown in Fig. 3, and the circumferential extent thereof being,r such that-a clearance-space of ninety degrees or more is lelt between the ends of each pair. The collare` 51-51 are so arranged upon the shai't that when the control-lever 47 is in its normal vertical position the lug` 52 is adjacent to one end of the lug 53, while the lng 52 adjoins the opposite cndrot the lug; 53. Thus, viewing the parts as in Figs. 5 and (l, movement or' the control-level' and rocking-shaft in a clockwise direction is' communicated through the lugs 53H52 to the arm 49, resulting in a similar movement of the arm 45 and collar 44, while the arms 49 and 45 remain in normal position. Similarly, movement of the control-lever and rocking-shaft from normal position in a counter-clockwise direction` as indicated in Fig. 5, results in downward movement of the arms 49 and 45, while the partsv con trolling clutching` movement of the lowspeed gear 23 remain in normal position. Thus, by movement of the control-lever 4-7 in opposite directions from its normal vertical or neutral position, the drum 27 may be caused to be actuated by either the hie-hspeed gear 22 or the low-speed `ear 23. The

latter gear is driven in either normal or reverse direction, accordingly as the clutch 21. is thrown to connect the pinion 18 or the pinion 17 with the A drive-shaft 1l, or if the clutch 21 is in intermediate or neutral position the gear 23 willl not he driven.

Rotation of thegear 9.3 is communicated by the spline 24 to the shaft 141, and said shaft is employed optionally to drive a ropesheave 54, as follows: Tire shaft is extended forwardly from the lbearing in the sideframe 12, and has secured. on the end thereof a collar 55. A plate 56 is keyed to the shaft intermediate the lend thereof and the sideframe, and the sheave 54 is mounted revolubly upon the shaft between said plate 56 and the collar 55. The web of the sheave has a lug 57 extending from the side thereof and boredito receive slidably a pin 58 which is adapted to extend into a notch in the plate 56, as shown in. Fig. 3, to thereby connect; the plate and sheave so that the latter will be driven by the shaft. The pin 5S is pressed rearwardly by a spring 59 disposed around a reduced portion thereof, and said reduced portion of 'the pin is extended through the asomar brakednind are connected with cranks 64 on a tubular shaft extending.y horizontally through the lower portions hf tt-he side frames 12 and 13. The rear end of the shaft, projecting beyond the side-frame 13, has a. head GG clamped thereon, and to said head is secured a horizontallyv extending foot-lever G7. Said foot-lever is provided at one end with a counterweight (3S which is arranged so that the tendency thereof is to so turn. the shaft as to loosen the brake-band G3. A brake-flange G9 is forined integrally with the sheave 54. and a brake-band is disposed around said flange. rThe ends of Said brakeband 70 are connected with cranks 71 secured on a shaft 72 which extends through and fits revolnbly within the tubular rockingsl1aft 4G. At the front end of said shaft 72 a head 73 is clamped thereon, said head having a horizontally extending arm 74 carrying a counterweight 7 5 of which the tendency is to so rotate the shaft as to loosen the brake-band 7 At the rear end of the shaft 72 a head 7 G is` clamped thereon, and to said head there is secured a foot-lever 77 which may be depressed to tighten the sheavebrake. 4

From the foregoing the operation of the mechanism as a whole will be apparent.

Wear of the drumfclutches and the controlling devices therefor may be compensated. within reasonable limits, by adjustments of y the take-up collars 37 on the collars 36. Through the driving connections made by the clutch 21. the loivspeet\l gear 23 may be driven in either normal or iieverse direction, therebyY similarly aetuatin the shaft 14. rThe drinn 27 may be driven at low speed in either normal or reverse direction, through the clutch-connection established by the cone 23 and flange 31. when the gear 23 is moved toward the, drinn by the described controlling means therefor. The sheave 54 may also-be driven at low speed in either normal or reverse direction, or, by turning the bandle (30 to Withdraw the connecting-pin 58 from the platey 56. said sheave may be freed, so as to idle upon ythe shaft. As the driving connection ot' the high-speed gear 22 is not made through the clutch 21, said gear 22 niav drive the drum at high speed, and the sheave 54 simultaneously be driven in either normal or reverse direction. the actuation thereof being controlled by the clutch 21.

`intcrloclnxd with the drinn The `separate brakes for the drum and sheave enable the stopping thereof to be controlled either independently or jointly. according to the driving connections established. by the clutch mechanism. i

Non', having described my invention, what I claim and desire to secure by Letters Patent is;

1. In a hoisting apparatus shaft, a rotary drum loose on driving members located at of the drinn engaging the saine to rotate the Isaid drum. one of the driving members being slidably a rotary drum the said shaft. opposite sides shaft, a gear fixed to the power shaft' and meshing with the other driving member for rotatingv the same in a forward direction.

and direct and indirect gearing `having` means for connecting the slidably interlocked driving member with the power shaft for rotating the sinne in either direction.

`2. In a hoisting apparatus, a rotary drum and provided with meansfor shaft. a powerl shaft, a rotary drinn loose. on the said shaft.`

vdriving members located at opposite sides of the drinn and provided with means for engaging the same to rotate the said drum. one ot the driving members being slidably interlocked with the drinn shaft, a`power" shaft, a gear fixed to the powerl shaft and n'ieshing with the other driving member for rotating the saine in a forward direction. and direct and indirect means for connecting the locked driving member with the power shaft' for rotating the same in either direction. said nieans comprising a clutch operating between the said direct and indirect gearing for clutching either of the same to the power shaft.

ln a hoisting apparatus, a drinn-shaft,` a frame in which said shaft is journaled. a drum mounted revolubly on the shaft and provided with clutch-members at the ends thereof, driving members mounted on the shaft adjoining the ends of the drum. means for engagii'ig said driving members with the drinn elutclrmembers alternatively. `means for connecting one of said driving members with the shaft to actuatc the latter. clutchcontrollcd means for actuating the latter driving member in either normal or reverse directioinand means for actuating the other driving member continuously in a normal direction at a speed different from that of the reversible driving member.

4. In a hoisting apparatus. a frame, ay shaft revolnbly mounted therein, a drum i'evolubly mounted on said shaft. a sheave. rcvi'ilubly mounted on said shaft.` i'eleasablc means for effecting a driving connection between the shaft and shcave. a` driving meins bei' mounted rcvolubly upon the shaft ad` joining one end of the drum. a driving mein ber mounted non-rotatively upon the shaft.

sl id ably inter# it 1,30Y

adjoining the other end of the drum, means 'for clutch-conneetingrN Said driving members with the drinn alternatively, means for aetnating the first driving' member lContinuenslv in af normal direction, clutch-oontrolled means for actuating@I the second driv'- ing member in either normal or reverse direetion at a speed different. from that of the first driving member, and separate braking means for the drinn and aheave,

n a hoisting' apparatus, a frame` a. shaft journaled therein, a drum mounted revolulrly on the shaft and ha ving clntehtianges at the ends thereof means for preventing longitudinal movement ot' the drum relatively to the Shaft. revolnble dri Vvingr members Slidably mounted on the shaft adjoining the ends ot the drum and haring' clutch-cones adapted for engaging the clutchtlane'es thereon, means for actuating one oit Said driving members at a greater speed than the other` means norn'ially pressing Said driving` members away from the drum, and Controlling' means for pressing Said men'ibers altermitiveliY toward the drum to operatively engageV the respective Clutch-cones and clutch-flanges; said Controlling.,Y means eempriaing a rocking-Shaft, members actuated respectively by movement of Said rockingaha'lt in opposite directions trom a normal position, a pair o'f collars disposed on the shaft adjoining eaeh driving member. each pair ot eollars havine` adjoining axially in elined faces. means vlor preventing rotation of one collar of each pair, and means Qonneeting' the other collars to the reapeetive roehingshaft-actuated men'ibers` (l. ln a hoisting apparatus, a rotar)vv drum Shaft, a rotar)v drum .loose on the xaaid aha tft', driving members located at opposite side ot the drinn and provided with mean for engaging-the .fame to rotate the said drum, one of the driving` members being Ialidabli interloeked ivith the drum hat`t4S a power shaft. a gear fixed to the poiver sha'tt and meshingwith the other driving member for rotating,r the same in a 'Forward diria-tion. a pair o-t gears` loosely mounted on the power Shaft. one ot the gears meehing direet I v with the Slidably interloeked driving' member. au intermediate Shaft, gears on the internadiate Shat't for eonneeting the other oi the said pair et gears` with the slidahl)Y interA loeked drivingmember. and a Clutch mounted on the power shatt and operalinel hw tween the yaaid pair ot gears tor elntehing` either of the name to the poirer yaha'lt where b v the slidabtv interloelted driving member may be rotated in either direction. 

